CN207020306U - A kind of laser scanning device and its laser radar apparatus with combination aperture - Google Patents
A kind of laser scanning device and its laser radar apparatus with combination aperture Download PDFInfo
- Publication number
- CN207020306U CN207020306U CN201721009849.0U CN201721009849U CN207020306U CN 207020306 U CN207020306 U CN 207020306U CN 201721009849 U CN201721009849 U CN 201721009849U CN 207020306 U CN207020306 U CN 207020306U
- Authority
- CN
- China
- Prior art keywords
- sub
- microscope
- laser scanning
- scanning device
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of laser scanning device and its laser radar apparatus with combination aperture, the laser scanning device includes scanning tower mirror and transmission microscope group, the transmission microscope group includes two sub- microscope groups, described two sub- microscope groups are provided adjacent to side by side, and the transmission microscope group can cover the scanning field of view of the laser scanning device；Photoelectric detection module, obtain the measurement signal for the light being respectively received for two sub- microscope groups；Processing module, it is connected with the photoelectric detection module, the measurement signal is handled.What the utility model was realized has technical effect that, can reduce the volume of laser scanning device, realizes miniaturization.
Description
Technical field
3 D laser scanning field is the utility model is related to, is filled more particularly to a kind of laser scanning with combination aperture
Put and its laser radar apparatus.
Background technology
In the prior art, laser radar apparatus may include laser scanning device, be swept for launching in certain visual angle
Retouch laser, and receive and run into the incident light that diffusing reflection after barrier is returned.
The laser scanning device is as shown in figure 1, including scanning tower mirror 10 and transmission microscope group 20.The scanning tower mirror 10 is around rotation
Axle X is rotated.The transmission microscope group 20 and the top surface of the scanning tower mirror 10 be arranged in parallel.
After the emergent light L that laser emission element 30 is sent penetrates the transmission microscope group 10, the inclined-plane through the scanning tower mirror 10 is anti-
Penetrate, so as to be emitted from the laser scanning device.It is a light beam through incident light L ' caused by barrier diffusing reflection, it is through diaphotoscope
After the convergence of group 20, received by laser pick-off unit 40.
The position of the relative scanning tower mirror 10 of laser emission element 30 is constant, and with the rotation of scanning tower mirror 10, emergent light L exists
Shuttle-scanning in certain visual angle.
So that the scanning tower mirror 10 is four rib tower mirrors as an example, Fig. 2 show on the right side of Fig. 1 to the left as viewed from schematic side view.
The transmission microscope group 20 can cover the scanning field of view of the laser scanning device, and emergent light and incidence are covered in guarantee
The light path of light.The transmission microscope group 20 is formed by an independent lens group.
But because prior art uses the independent lens group to cover whole scanning field of view, so the aperture A of lens group
Larger, then corresponding focal length is larger.And laser emission element 30 and laser pick-off unit 40 must be arranged at transmission microscope group 20
At focal length, cause that the optical system overall length of laser scanning device is larger, and the overall volume shared by device is larger.
The content of the invention
The technical problem that the utility model solves is, reduces the volume of laser scanning device, realizes miniaturization.
The utility model discloses a kind of laser scanning device with combination aperture, and the device is including scanning tower mirror and thoroughly
Microscope group is penetrated, the transmission microscope group includes two sub- microscope groups, and described two sub- microscope groups are provided adjacent to side by side, and the transmission microscope group can cover
The scanning field of view of the laser scanning device；
Photoelectric detection module, obtain the measurement signal for the light being respectively received for two sub- microscope groups；
Processing module, it is connected with the photoelectric detection module, the measurement signal is handled.
The aperture of two sub- microscope groups is identical or differs.
Two sub- microscope groups are adjoined each other with a string side respectively.
The string side of two sub- microscope groups is mutually isometric, or Length discrepancy.
The photoelectric detection module is photoelectric sensor.
The photoelectric detection module is photodiode or avalanche photodide.
The laser scanning device includes two photoelectric detection modules, is connected respectively with two sub- microscope groups, is somebody's turn to do with receiving
Two sub- respective measurement signals of microscope group.
The scanning tower mirror includes Rhizoma Sparganii tower mirror, four rib tower mirrors, five rib tower mirrors, six rib tower mirrors or eight rib tower mirrors.
The invention also discloses a kind of laser radar apparatus, including：Described laser scanning device.
What the utility model was realized has technical effect that, can reduce the volume of laser scanning device, realizes miniaturization.
Brief description of the drawings
Fig. 1 show the structural representation of laser scanning device in the prior art.
Fig. 2 show the schematic side view of laser scanning device in the prior art.
Fig. 3 show the structural representation of laser scanning device of the present utility model.
Fig. 4 show the structural representation of laser scanning device of the present utility model.
Embodiment
The implementation process of the technical solution of the utility model is described below in conjunction with specific embodiment, not as new to this practicality
The limitation of type.
It is illustrated in figure 3 the structural representation of laser scanning device of the present utility model.In the utility model, laser is swept
Imaging apparatus also includes scanning tower mirror 10 and transmission microscope group 20, and unlike the prior art, transmission microscope group 20 includes sub- microscope group 201
With sub- microscope group 202.Described two sub- microscope groups are provided adjacent to side by side, and transmission microscope group 20 can cover sweeping for the laser scanning device
Retouch visual field, that is to say, that the entirety of sub- microscope group 201 and sub- microscope group 202 can cover the scanning field of view of the laser scanning device.
Sub- microscope group 201 is identical with the aperture of sub- microscope group 202, and two sub- microscope groups are adjoined each other with a string side C respectively, sub- mirror
The string of group 201 C equal or different lengths in C and the string of sub- microscope group 202.Or the aperture of sub- microscope group 201 and sub- microscope group 202 is not
It is identical, but two sub- microscope groups are still adjoined each other with isometric string side, or abutted with the string side of Length discrepancy, but the center of circle is positioned at same
Highly.So that laser scanning device of the present utility model has combination aperture.
Because the utility model from an independent lens group is adjusted to be provided adjacent to side by side using two sub- microscope groups, and cover
The scanning field of view of lid does not change, then aperture of the aperture of every sub- microscope group than independent lens group of the prior art is small.
Aperture diminishes, and focal length, which also corresponds to, to diminish so that the optical system overall length of laser scanning device of the present utility model is smaller, laser
Transmitter unit 30 and laser pick-off unit 40 can be arranged on apart from sub- microscope group 201 and the closer proximity of sub- microscope group 202, then are swashed
The shared overall volume of light scanning apparatus diminishes therewith.
It is illustrated in figure 4 the structural representation of laser scanning device of the present utility model.
Laser scanning device also includes two photoelectric detection modules 301,302 and processing module 40.Photoelectric detection module
301st, 302 are used for the measurement signal that obtains the light being respectively received for this two sub- microscope groups 201,202, processing module 40 with
The photoelectric detection module 301,302 is connected, and the measurement signal is handled.The photoelectric detection module is photoelectric sensor,
Specifically, the photoelectric detection module can use photodiode PIN or avalanche photodide APD.In addition, in another implementation
The light that can also use same photoelectric detection module to be received respectively to the sub- microscope group 201,202 in example measures.The scanning
Tower mirror includes Rhizoma Sparganii tower mirror, four rib tower mirrors, five rib tower mirrors, six rib tower mirrors or eight rib tower mirrors.Other obvious modes of texturing are also at this
In the open scope of utility model.
Processing mode for processing module 40 to measurement signal, can be by the way of fixed proportion distribution.
The mode of fixed proportion distribution is, for example, the measurement signal that photoelectric detection module 301 obtains sub- microscope group 201 at any time
S1, photoelectric detection module 302 obtains the measurement signal S of sub- microscope group 202 at any time2。
Processing unit 40 is to measurement signal S1, measurement signal S2The integration of pro rate is fixed.Such as respectively to take half
Mode integrated.
V=S1*0.5+S2*0.5
The conformity calculation value that V exports for processing unit 40, S1The measurement of sub- microscope group 201 is directed to for photoelectric detection module 301
Signal, S2The measurement signal of sub- microscope group 202 is directed to for photoelectric detection module 302.
In addition to each distribution 0.5, distributed also in open scope of the present utility model with other fixed proportions.
Such then calculating process is succinct, data surge amplitude is smaller, and data are accurate.
Processing module 40 is to other processing modes substantially deformed of measurement signal also in open scope of the present utility model
It is interior.
The technical solution of the utility model can reduce the volume of laser scanning device, realize miniaturization.In addition, do not influence
The accuracy of data output.
Above-described embodiment is only to realize exemplary description of the present utility model, without limiting protection of the present utility model
Scope, protection domain refers to be defined described in rear accessory claim book.
Claims (9)
1. a kind of laser scanning device with combination aperture, the device includes scanning tower mirror and transmission microscope group, it is characterised in that：
The transmission microscope group includes two sub- microscope groups, and described two sub- microscope groups are provided adjacent to side by side, and the transmission microscope group can cover institute
State the scanning field of view of laser scanning device；
Photoelectric detection module, obtain the measurement signal for the light being respectively received for two sub- microscope groups；
Processing module, it is connected with the photoelectric detection module, the measurement signal is handled.
2. device as claimed in claim 1, it is characterised in that the aperture of two sub- microscope groups is identical or differs.
3. device as claimed in claim 1 or 2, it is characterised in that two sub- microscope groups are adjoined each other with a string side respectively.
4. device as claimed in claim 3, it is characterised in that the string side of two sub- microscope groups is mutually isometric, or Length discrepancy.
5. device as claimed in claim 1, it is characterised in that the photoelectric detection module is photoelectric sensor.
6. device as claimed in claim 5, it is characterised in that the photoelectric detection module is photodiode or avalanche optoelectronic two
Pole pipe.
7. the device as described in claim 1 or 4 or 5 or 6, it is characterised in that the laser scanning device includes two photoelectricity
Detecting module, it is connected respectively with two sub- microscope groups, to receive this two sub- respective measurement signals of microscope group.
8. device as claimed in claim 1, it is characterised in that the scanning tower mirror includes Rhizoma Sparganii tower mirror, four rib tower mirrors, five rib towers
Mirror, six rib tower mirrors or eight rib tower mirrors.
A kind of 9. laser radar apparatus, it is characterised in that including：
Laser scanning device as described in any in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009849.0U CN207020306U (en) | 2017-08-14 | 2017-08-14 | A kind of laser scanning device and its laser radar apparatus with combination aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009849.0U CN207020306U (en) | 2017-08-14 | 2017-08-14 | A kind of laser scanning device and its laser radar apparatus with combination aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207020306U true CN207020306U (en) | 2018-02-16 |
Family
ID=61477529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721009849.0U Active CN207020306U (en) | 2017-08-14 | 2017-08-14 | A kind of laser scanning device and its laser radar apparatus with combination aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207020306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3792653A1 (en) * | 2019-09-12 | 2021-03-17 | Riegl Laser Measurement Systems GmbH | Laser scanner |
-
2017
- 2017-08-14 CN CN201721009849.0U patent/CN207020306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3792653A1 (en) * | 2019-09-12 | 2021-03-17 | Riegl Laser Measurement Systems GmbH | Laser scanner |
| WO2021047846A1 (en) | 2019-09-12 | 2021-03-18 | Riegl Laser Measurement Systems Gmbh | Laser scanner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7933055B2 (en) | Laser scanner | |
| CN201622345U (en) | Laser distance measurement device | |
| CN105093235B (en) | A kind of synchronous scanning intersection measurement fusion of imaging system | |
| CN211014630U (en) | Laser radar device and motor vehicle system | |
| US10935638B2 (en) | Laser radar system | |
| CN102183359B (en) | Method and device for detecting collimation of light beams | |
| CN102621558A (en) | Laser radar visibility meter and transceiving coaxial optical system thereof | |
| CN106646429A (en) | Apparatus and method for geometric factor self-calibration of laser radar | |
| Liebe et al. | Distance measurement utilizing image-based triangulation | |
| CN114200426A (en) | Light receiving module, light receiving method, laser radar system and vehicle | |
| CN104748721A (en) | Monocular vision sensor with coaxial distance measuring function | |
| CN207020306U (en) | A kind of laser scanning device and its laser radar apparatus with combination aperture | |
| CN208421217U (en) | A kind of optical receiving system | |
| CN107271986A (en) | A kind of staring imaging receiving optics for MEMS micromirror laser radar | |
| CN110832347B (en) | Focal zone optical element for high performance optical scanner | |
| CN108387974A (en) | High-power optical fiber laser receiving and transmitting integrated end cap | |
| CN104034663A (en) | Material space reflection characteristic measuring instrument using optical fiber bundles | |
| CN208076758U (en) | High-power optical fiber laser receiving and transmitting integrated end cap | |
| US20230007979A1 (en) | Lidar with photon-resolving detector | |
| CN1821811A (en) | Method and device for non-uniform lighting detecting target image | |
| CN111856505A (en) | Lidar and lidar system | |
| CN113340850A (en) | Nearly 180 degrees three-dimensional volume scattering function measurement system of water | |
| CN113340851A (en) | Water body forward small-angle three-dimensional volume scattering function measuring system | |
| CN112558038A (en) | Scanning method of laser radar | |
| CN211348622U (en) | Optical lens applied to laser radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |